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50 lines
792 B
Python
50 lines
792 B
Python
import os.path
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from flask import Flask, request # $ Source
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app = Flask(__name__)
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def source():
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return request.args.get("path", "")
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def normalize(x):
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return os.path.normpath(x)
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@app.route("/path")
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def simple():
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x = source()
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open(x) # $ Alert
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@app.route("/path")
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def normalization():
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x = source()
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y = normalize(x)
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open(y) # $ Alert
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@app.route("/path")
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def check():
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x = source()
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if x.startswith("subfolder/"):
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open(x) # $ Alert
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@app.route("/path")
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def normalize_then_check():
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x = source()
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y = normalize(x)
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if y.startswith("subfolder/"):
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open(y) # $ result=OK
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@app.route("/path")
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def check_then_normalize():
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x = source()
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if x.startswith("subfolder/"):
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y = normalize(x)
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open(y) # $ Alert
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